I keep seeing how better cars run with no MAFs, wouldnt i be running better with one? i mean isnt there a reason that GM put this after 93? :P

 

Take it off for cleaning, that's about the only thing you can do. It should be running fine as long as the MAF is clean.......and trust me, it's worth cleaning!

 

Who is running faster with no MAF? Mass Air Flow allows your car to accurately monitor the mass of the incoming air and correctly meter fuel accordingly. If the '93 was so good at it, why did GM go to Mass Air and never turn back?

 

What do you clean on the MAF, how do you clean and what do you use to clean it ??

 

Clean the small resistors lightly with q-tips dipped in rubbing alcohol.

 

Maybe it was for fuel mileage and emissions reasons mostly

 

Fuel mileage and emissions (as well as power) are directly dependent on properly metered fuel. Guess you could say the MAF does a superior job...

 

Im not dissagreeing with you...I was just stateing the main reason for going to the MAF. Seems like I read somewhere where the stock 93 z was faster than the stock 94 z.

 

Mine does because I have a fuel problem. MY BLMs counts are 108 to 118 and My Integrators at 123 both give or take 2 points when I have the MAF conected. As soon as I disconected the MAF the BLMs stay around 128 and my Integrators see 127 to 133. The car wakes up and the knocking and pinging under load disappears.

Performance wise, I discovered last night just how restrictive the OEM air duct it is. With the MAF connected I saw a tremendous improvement at WOT when I removed the ducting from the Air Cleaner to the MAF. Although I did not feel any difference my log shows an acceleration that was better than a C5. I have the log to prove it. 0 to 70MPH on 4.5 seconds. Thats my best acceleration ever on an otherwise OLD OEM MAF.

MY MAP sensor shows intake manifold vacum build-up between 3200 RPMs and 5325 RPMs. Measured in volts is a vacum of begining at .04 and ending at .24 Volts from BAR.

With everything connected my Intake vacum begins at 3350RPMs and .08 volts and at 4650 RPMs is already at .24 from BAR.

As you can see the vacum build up is the same amount but at much higher RPMs and I think thats the reason why I accelerate much faster..She can breath much better.


Tonite I am physically removing the MAF sensor and ducting to the Air Filter and to a WOT run on speed density to find out if the MAF Sensor is directly responsible for the Vacum build up in the Intake Manifold at High RPMs (physical restriction). If I see the same build up without it I will know fer sure that the Throttle Body not flowing enough Air as it will be the only thing between the outside air and the pistons besides the Valves that is.. but the vacum buildup I am talking about is before the valves.

I know many board members will tell me the TB is the culprit but its soo hard to find measured evidence by reading all the posts and I dont wanna read for hrs when I can just do a WOT run myself and have it first hand.

One last thing, somewhere I read that the MAF sensor is so much quicker to adjust to sudden changes in Mass air entering the engine than it can be possibly calculated using speed density... also the MAF sensor by reading actual air mass it acts as an automatic adjusting metering device to any engine... Technically you can put the same MAF in any equal or smaller car and by using the same calibration you will be able to measure acurately the amount of air for that engine at any given rpm. You just need to calibrate the amount of air per cylinder needed. In other words it helps fine tune any engine from the asembly line in a more acurate way by knowing the exact amount of air as opposed as a calculated one...

More accuracy is the name of the game.


Marvin